stopple

The oil will soon insinuate itself downwards, and the stopple may then be loosened by the hand, or by striking it lightly with a piece of soft wood.

From The Cook and Housekeeper's Complete and Universal Dictionary; Including a System of Modern Cookery, in all Its Various Branches, Adapted to the Use of Private Families by Mary Eaton

Rub a drop or two of oil with a feather round the stopple, close to the mouth of the bottle or decanter, then place it between one and two feet from the fire.

From The New England Cook Book, or Young Housekeeper's Guide Being a Collection of the Most Valuable Receipts; Embracing all the Various Branches of Cookery, and Written in a Minute and Methodical Manner by Anonymous

Stopper -- N. stopper, stopple; plug, cork, bung, spike, spill, stopcock, tap; rammer†; ram, ramrod; piston; stop-gap; wadding, stuffing, padding, stopping, dossil†, pledget†, tompion†, tourniquet. cover &c.

From Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

He pounces upon the decanter, pulls out the stopple, and applies his nose to the mouth.

From Evening Dress Farce by William Dean Howells

Stopple, stop′l, n. that which stops or closes the mouth of a vessel: a cork or plug.—v.t. to close with a stopple.

From Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) by Various

Not one company responded, so she stoppled looking.

From New York Times ● Dec. 14, 2021

I produced from my pocket a little vial, containing matches, stoppled water-tight, and told him, that, though we were upset, we should still have some dry matches; at which he stared without saying a word.

From The Atlantic Monthly, Volume 02, No. 10, August, 1858 by Various